Question

Помогите с математикой(а-г) ​

Answer 1

а)

$5m-(3m+5)+(2m-4) = 5m - 3m - 5 + 2m - 4 = 4m - 9$

б)

$-5(x+3) + 4(x-2) - 6(2x+1) = -5x - 15 + 4x - 8 - 12x - 6 = -13x - 29$

в)

$0,2(6x-5) - 4(0,2x-2) = 1,2x - 1 - 0,8x + 8 = 0,4x+7$

г)

$0,4(1,5y+3) - 2,5(3-0,6y) = 0,6y + 1,2 - 7,5 + 1,5y = 2,1y - 6,3 = 2,1(y - 3)$